linux-kernel - Re: [GIT PULL] f2fs update for 4.18-rc1

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Message-ID: <20180611174010.GC6783@jaegeuk-macbookpro.roam.corp.google.com>
Date:   Mon, 11 Jun 2018 10:40:10 -0700
From:   Jaegeuk Kim <jaegeuk@...nel.org>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     Matthew Wilcox <mawilcox@...rosoft.com>,
        "Linux F2FS DEV, Mailing List" 
        <linux-f2fs-devel@...ts.sourceforge.net>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [GIT PULL] f2fs update for 4.18-rc1

On 06/11, Linus Torvalds wrote:
> On Mon, Jun 11, 2018 at 9:52 AM Jaegeuk Kim <jaegeuk@...nel.org> wrote:
> >
> > In order to avoid old MM bug [1], we decided not to use __GFP_ZERO
> > for the mapping for node and meta page caches.
> >
> > [1] https://lkml.org/lkml/2018/4/8/661
> 
> Hmm. The patch there looks correct, and anybody who relies on slab
> constructors is crazy.
> 
> That email from April says it should go into stable, but it never even
> went upstream..

Heh, I forgot to link the latest results. The MM fix was merged by:

abc1be13fd11 ("mm/filemap.c: fix NULL pointer in page_cache_tree_insert()")

Thanks,

> 
> Adding Willy to the cc, for comments, since he's been active there and
> is probably the maintainer even if the MAINTAINERS file doesn't say
> so..
> 
> Willy?
> 
>              Linus